Are you interested in the impact of Clopyralid on the health of workers in manufacturing plants? This article will answer questions related to this chemical and how it affects your health when working in a production environment.
1. What is Clopyralid?
Clopyralid is a chemical compound widely used in agriculture and weed control. The chemical formula for Clopyralid is C6H3O2NCl2. Originally developed by Dow AgroSciences and first introduced in the 1980s, clopyralid is a very effective herbicide against broadleaf plant species such as weeds and shrubs. It belongs to the pyridine carboxylic acid group of herbicides and works by inhibiting plant growth and damaging their internal biological processes.
The chemical formula C6H3O2NCl2 of clopyralid describes the molecular composition of this substance. Clopyralid is a carboxylic acid with two chlorine atoms in its molecular structure. The presence of carbon, hydrogen, oxygen, and chlorine elements in the chemical formula indicates the molecular structure and the activity of clopyralid when used as an herbicide.
In its technical form, clopyralid is often sold as a salt, for example, clopyralid acid, clopyralid butotyl, and clopyralid ethanolamine. These are supplementary forms of clopyralid used to optimize chemical properties and effectiveness in commercial applications.
| No. | Chemical name in Vietnamese | Chemical name in English | HS Code | CAS Number | Chemical formula |
| 1. | Clopyralit | Clopyralid | 29333990 | 1702-17-6 | C6H3O2NCl2 |
See more services: chemical safety training according to Decree 113/2017/ND-CP
REGISTER FOR CHEMICAL SAFETY TRAINING ACCORDING TO DECREE 113
2.Where does Clopyralid originate from in the production process?
Clopyralid is produced through a complex chemical process starting from specific raw materials and reactions. The main raw materials for producing clopyralid include simple compounds like picolinic acid and chlorine-containing compounds. The synthesis of clopyralid involves special synthesis and purification steps to achieve the final product with high purity and effectiveness.
First, picolinic acid and a suitable chlorine source are used as a base to start the synthesis process. Chemical reactions are conducted to create specific molecular bonds, building the main structure of clopyralid. This process requires careful regulation of temperature, pressure, and chemical factors to ensure product efficiency and purity.
After that, the intermediate products are purified and processed to remove impurities and unwanted byproducts. This process may include washing, crystallization, filtration, and formulation steps to obtain clopyralid in its complete technical form, ready for use in herbicide applications. The production of clopyralid is a complex industrial process that requires high expertise and strict control to ensure the quality and effectiveness of the final product.

3. Industries that use Clopyralid in production
Clopyralid is an active herbicide ingredient widely used in the agriculture and crop care industry. Due to its harmful nature to many broadleaf plant species, clopyralid is applied to control weeds and other woody plants in agricultural areas, forests, and parks.
In the agricultural sector, clopyralid is often used to control weeds in rice paddies, grasslands, and cultivated gardens. It has the ability to inhibit the growth of weeds without harming the main crop, helping to increase the yield and quality of the harvest. In addition, clopyralid is also used in managing weeds on golf courses and other green areas to maintain the landscape and golf playability.
In the forestry and tree care sector, clopyralid can be used to control weeds and other invasive plant species to protect the growth of important forest trees. Removing weeds helps mature trees grow better and enhances their resistance to other dangers.
In addition, clopyralid also has applications in landscaping and park care to maintain beautiful green and clean landscapes. The use of clopyralid is strictly regulated to ensure safety and effectiveness in controlling weeds and protecting other important plant species. However, the use of clopyralid must comply with the regulations and guidelines of management agencies to avoid affecting the environment and human health.
4. How does Clopyralid affect workers?
Clopyralid is an herbicide that can affect the health of workers if not used correctly or if safety measures are not followed. Workers in the agriculture and park sectors need to be aware of the potential risks associated with exposure to clopyralid.
Direct contact or inhalation of clopyralid vapor can cause health problems such as headaches, dizziness, nausea, and fatigue. These symptoms may appear immediately after exposure or repeatedly over time. People who work with clopyralid must often wear appropriate protective gear to protect their health, including respiratory masks and skin protection.
In addition, if clopyralid is used improperly and safety regulations are not followed, it can lead to more serious risks to workers’ health. Repeated exposure or exposure over a long period can cause respiratory, skin, and eye problems.
5. Permissible safe concentration of Clopyralid for human exposure
The permissible safe concentration of clopyralid for human exposure is strictly regulated and controlled to ensure the protection of public health. Standards for safe concentrations of clopyralid are established based on scientific research and are issued by government regulatory agencies.
In agriculture and related activities, the permitted concentration of clopyralid is usually very low, typically ranging from a few ppm (parts per million) to several tens of ppm. Quotas and concentration limits are set to ensure that worker and consumer exposure to clopyralid is safe.
In addition, the safe concentration of clopyralid also depends on the method of use and the intended application of the product. Using it according to instructions and adhering to safety regulations is very important to avoid excessive accumulation of clopyralid in the environment and in agricultural products.

On a basic level, if working in an industrial environment, adhering to safety standards and limiting exposure to Clopyralid is important. Organizations such as the Occupational Safety and Health Administration (OSHA) in the United States provide guidelines and safety principles to protect workers from the negative impacts of chemical substances.
6. Measures to minimize the impact of Clopyralid on workers’ health
To minimize the impact of clopyralid on workers’ health, safety measures and regulatory procedures are proposed and strictly applied in activities using this substance.
- Wear protective gear: Workers need to be fully equipped with personal protective equipment such as respiratory masks, gloves, gowns, and safety goggles to protect their skin, respiratory system, and eyes from direct contact with clopyralid. Using appropriate protective gear is the most basic and effective measure to reduce the risk of unwanted exposure to this substance.
- Follow usage instructions: Adhering to the usage instructions and correct dosage of clopyralid is very important. Workers need to be trained on the safe use of the product, especially in handling, mixing, and applying the herbicide.
- Periodic health checks: Periodic health checks for workers exposed to clopyralid are necessary to monitor potential symptoms and detect related health problems early. If there are any suspicious signs, workers should seek medical attention immediately for timely diagnosis and treatment.
- Monitor the work environment: Companies and production facilities need to conduct periodic monitoring of clopyralid concentrations in the work environment to ensure that worker exposure levels are always within safe limits. If there are any issues related to the accumulation or contamination of clopyralid, appropriate remedial measures must be implemented immediately.
- Training and awareness raising: Training and raising awareness about the risks of clopyralid are very important. Manufacturers, managers, and workers need to be fully trained on safety measures and the rational use of this substance to protect health and the environment.
Occupational safety training: Workers need to be trained and educated about the risks and safety measures when working with this type of chemical. This training needs to be provided periodically and regularly to ensure understanding and proper compliance with safety rules.
Periodically organize workplace environment monitoring in factories and enterprises, collect and analyze factors harmful to workers, thereby adjusting to reduce hazard levels to prevent occupational diseases for them.
7. Nationwide Workplace Environment Monitoring Center
Nam Viet’s Workplace Environment Monitoring Center is a professional unit for monitoring and measuring the quality of the working environment in all provinces and cities in Vietnam. With a team of experienced monitoring specialists, the center uses modern measuring equipment, ensuring accuracy and reliability.
REGISTER FOR WORKPLACE ENVIRONMENT MONITORING SERVICE
In addition to providing monitoring services, the center also supports clients in planning, handling, and tracking workplace environment issues. With the motto “the customer is the center,” the center focuses on customer satisfaction, meets all customer needs, and is committed to providing the best solutions for businesses.
With investment in techniques, technology, and human resources, Nam Viet’s monitoring center has been and is becoming one of the reputable units in the field of workplace environment monitoring in Ho Chi Minh City with the following objectives:
- We always value our brand reputation and the quality of our products and services.
- We provide our customers with the best and most suitable things possible.
- Along with a team of Masters and Engineers with rich experience and expertise, we desire to protect the environment and bring benefits to businesses.

- Coming to Nam Viet’s Environmental Monitoring team, your company will receive professional service from experts in the monitoring field. At the same time, you will get the best cost incentives.
8. Workplace environment monitoring quotation
To help businesses conduct workplace environment monitoring professionally and effectively, Nam Viet provides customers with a quality and reasonably priced quotation for workplace environment monitoring services.
- Our monitoring quotation provides detailed information on the prices of the monitoring services we offer. This includes costs related to travel, measurement, analysis, and reporting of results. Customers can be completely assured of the accuracy and reliability of the monitoring result reports we provide.
- We commit to always offering the most competitive and reasonable prices on the market, and we are also always ready to consult and answer any questions about monitoring services quickly and professionally.
- With Nam Viet’s monitoring quotation, customers can easily choose service packages that suit their needs. We are committed to bringing customers the highest satisfaction with professional service quality.

